/*! This file is auto-generated */ .wp-block-button__link{color:#fff;background-color:#32373c;border-radius:9999px;box-shadow:none;text-decoration:none;padding:calc(.667em + 2px) calc(1.333em + 2px);font-size:1.125em}.wp-block-file__button{background:#32373c;color:#fff;text-decoration:none} Problem 15 Determine whether the data are f... [FREE SOLUTION] | 91影视

91影视

Log out

Learning Materials

Features

Discover

Chapter 1: Problem 15

Determine whether the data are from a discrete or continuous data set. In a study of service times at a McDonald's drive-up window, the numbers of cars serviced each hour of several days are recorded.

Short Answer

Expert verified
Discrete data

Step by step solution

01

- Understand the Context

Identify the type of data involved in the study. Here, the numbers of cars serviced each hour at a McDonald's drive-up window are recorded over several days.
02

- Define Discrete Data

Discrete data involves countable quantities. These are distinct, separate values or counts, often representing whole numbers (e.g., the number of students in a class, the number of cars).
03

- Define Continuous Data

Continuous data can take any value within a range and is measurable (e.g., time, temperature, height). These data are not restricted to specific separate values.
04

- Analyze the Type of Data in the Exercise

Examine whether the number of cars serviced each hour, which is being recorded, can be fractional or if it involves whole numbers only.
05

- Conclusion

Since the number of cars serviced each hour must be a whole number and represents countable quantities, it is discrete data.

Unlock Step-by-Step Solutions & Ace Your Exams!

  • Full Textbook Solutions

    Get detailed explanations and key concepts

  • Unlimited Al creation

    Al flashcards, explanations, exams and more...

  • Ads-free access

    To over 500 millions flashcards

  • Money-back guarantee

    We refund you if you fail your exam.

Over 30 million students worldwide already upgrade their learning with 91影视!

Key Concepts

These are the key concepts you need to understand to accurately answer the question.

Explain Discrete Data
Discrete data consist of countable, distinct values or counts. These are often whole numbers.
A key characteristic of discrete data is that there are gaps between possible values.
Here are some examples:
  • The number of students in a classroom
  • The number of cars on a street
  • The number of books in a library
Discrete data cannot be subdivided meaningfully. For instance, you can't have 2.5 cars or 4.3 books.
It's always about specific whole units.
Explain Continuous Data
Continuous data represent measurable quantities that can take any value within a given range.
In other words, continuous data can be broken down into infinitely smaller parts.
Examples include:
  • Time (e.g., 2.5 hours)
  • Temperature (e.g., 37.5掳C)
  • Distance (e.g., 1.75 meters)
One significant feature of continuous data is that there are no gaps between possible values.
Unlike discrete data, continuous data can include fractions or decimals.
Understanding Data Analysis
Data analysis involves inspecting, cleansing, transforming, and modeling data to discover useful information.
It helps in drawing conclusions and supports decision-making.
Steps in data analysis can include:
  • Collecting data
  • Cleaning data (removing errors or inconsistencies)
  • Exploring data (basic statistical summaries and visualizations)
  • Modeling data (applying statistical methods)
  • Interpreting results
Proper data analysis ensures that the data being used is reliable, accurate, and relevant.
Overview of Statistical Methods
Statistical methods are techniques applied to data to summarize or infer conclusions.
These methods are divided into two major types:
  • Descriptive Statistics: These summarize the data. They include measures like mean, median, mode, standard deviation, and range.
  • Inferential Statistics: These allow for making predictions or inferences about a larger population based on a sample of data. Techniques include hypothesis testing, regression analysis, and more.
Using the right statistical methods ensures that your analysis is both accurate and meaningful.

One App. One Place for Learning.

All the tools & learning materials you need for study success - in one app.

Get started for free

Most popular questions from this chapter

In a Harris Interactive survey of 2276 adults in the United States, it was found that \(33 \%\) of those surveyed never travel using commercial airlines. Identify the population and sample. Is the value of \(33 \%\) a statistic or a parameter?

Answer the given questions, which are related to percentages. An ad for Big Skinny wallets included the statement that one of their wallets "reduces your filled wallet size by \(50 \%-200 \% .\) " What is wrong with this statement?

Identify whether the given value is a statistic or a parameter. In a study of 400 babies born at four different hospitals in New York State, it was found that the average (mean) weight at birth was 3152.0 grams.

Determine whether the sampling method appears to be sound or is flawed. In an AARP, Inc. survey of 1019 randomly selected adults, each was asked how much credit card debt he or she pays off each month.

Answer the given questions, which are related to percentages. In a survey conducted by TheKnot.com, 1165 engaged or married women were asked about the importance of a bended knee when making a marriage proposal. Among the 1165 respondents, \(48 \%\) said that the bended knee was essential. a. What is the exact value that is \(48 \%\) of 1165 survey respondents? b. Could the result from part (a) be the actual number of survey subjects who said that a bended knee is essential? Why or why not? c. What is the actual number of survey respondents saying that the bended knee is essential? d. Among the 1165 respondents, 93 said that a bended knee is corny and outdated. What percentage of respondents said that a bended knee is corny and outdated?
See all solutions

Recommended explanations on Math Textbooks

Calculus

Read Explanation

Statistics

Read Explanation

Theoretical and Mathematical Physics

Read Explanation

Geometry

Read Explanation

Discrete Mathematics

Read Explanation

Mechanics Maths

Read Explanation
View all explanations

What do you think about this solution?

We value your feedback to improve our textbook solutions.

Study anywhere. Anytime. Across all devices.